From patchwork Thu Feb 22 13:17:00 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mark Brown X-Patchwork-Id: 876717 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3znGq71Gbkz9s5R for ; Fri, 23 Feb 2018 01:25:39 +1100 (AEDT) Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=sirena.org.uk header.i=@sirena.org.uk header.b="CaNsrVM5"; dkim-atps=neutral Received: from bilbo.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 3znGq66VY7zF11V for ; Fri, 23 Feb 2018 01:25:38 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=sirena.org.uk header.i=@sirena.org.uk header.b="CaNsrVM5"; dkim-atps=neutral X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=sirena.org.uk (client-ip=2a01:7e01::f03c:91ff:fed4:a3b6; helo=heliosphere.sirena.org.uk; envelope-from=broonie@sirena.org.uk; receiver=) Authentication-Results: lists.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=sirena.org.uk header.i=@sirena.org.uk header.b="CaNsrVM5"; dkim-atps=neutral Received: from heliosphere.sirena.org.uk (heliosphere.sirena.org.uk [IPv6:2a01:7e01::f03c:91ff:fed4:a3b6]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3znFJ50zc8zF192 for ; Fri, 23 Feb 2018 00:17:09 +1100 (AEDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sirena.org.uk; s=20170815-heliosphere; h=Date:Message-Id:In-Reply-To: Subject:Cc:To:From:Sender:Reply-To:MIME-Version:Content-Type: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:References: List-Id:List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner: List-Archive; bh=h/uiUMb6B14874MPpbbtkUqnIbtO2Fdc2/mdmS5K7Gw=; b=CaNsrVM5eSb7 pAUgkwPXF0hR7qDLTJT5Ex007H9crN/bEKDY7W3xVuFcKxoK19D+c1KgP+cb9/qtJKgD4elwSL4a5 rNUuiQzGjUx98kQRcpiXzTBmcj528BfM3xRk+XXNHePMOPs2StST9N9DI8NmupVkbIlfuDzYBUdC4 3k6/8=; Received: from debutante.sirena.org.uk ([2001:470:1f1d:6b5::3] helo=debutante) by heliosphere.sirena.org.uk with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1eoqk9-0002Vj-0Q; Thu, 22 Feb 2018 13:17:01 +0000 Received: from broonie by debutante with local (Exim 4.90_1) (envelope-from ) id 1eoqk8-0006Qq-HP; Thu, 22 Feb 2018 13:17:00 +0000 From: Mark Brown To: Nicolin Chen Subject: Applied "ASoC: fsl_ssi: Maintain a mask of active streams" to the asoc tree In-Reply-To: <1515990087-11598-5-git-send-email-nicoleotsuka@gmail.com> Message-Id: Date: Thu, 22 Feb 2018 13:17:00 +0000 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: alsa-devel@alsa-project.org, arnaud.mouiche@invoxia.com, lgirdwood@gmail.com, linux-kernel@vger.kernel.org, mail@maciej.szmigiero.name, caleb@crome.org, timur@tabi.org, broonie@kernel.org, kernel@pengutronix.de, lukma@denx.de, fabio.estevam@nxp.com, linuxppc-dev@lists.ozlabs.org Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" The patch ASoC: fsl_ssi: Maintain a mask of active streams has been applied to the asoc tree at https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted. You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed. If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced. Please add any relevant lists and maintainers to the CCs when replying to this mail. Thanks, Mark From e0582731abe004163e78ad2dac4cd1196db0908f Mon Sep 17 00:00:00 2001 From: Nicolin Chen Date: Mon, 12 Feb 2018 14:03:12 -0800 Subject: [PATCH] ASoC: fsl_ssi: Maintain a mask of active streams Checking TE and RE bits in SCR register doesn't work for AC97 mode which enables SSIEN, TE and RE in the fsl_ssi_setup_ac97() that's called during probe(). So when running into the trigger(), it will always get the result of both TE and RE being enabled already, even if actually there is no active stream. This patch fixes this issue by adding a variable to log the active streams manually. Signed-off-by: Nicolin Chen Tested-by: Caleb Crome Tested-by: Maciej S. Szmigiero Reviewed-by: Maciej S. Szmigiero Signed-off-by: Mark Brown --- sound/soc/fsl/fsl_ssi.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c index 14046c32dc07..b277a563ff48 100644 --- a/sound/soc/fsl/fsl_ssi.c +++ b/sound/soc/fsl/fsl_ssi.c @@ -205,6 +205,7 @@ struct fsl_ssi_soc_data { * @cpu_dai_drv: CPU DAI driver for this device * * @dai_fmt: DAI configuration this device is currently used with + * @streams: Mask of current active streams: BIT(TX) and BIT(RX) * @i2s_net: I2S and Network mode configurations of SCR register * @use_dma: DMA is used or FIQ with stream filter * @use_dual_fifo: DMA with support for dual FIFO mode @@ -249,6 +250,7 @@ struct fsl_ssi { struct snd_soc_dai_driver cpu_dai_drv; unsigned int dai_fmt; + u8 streams; u8 i2s_net; bool use_dma; bool use_dual_fifo; @@ -444,15 +446,14 @@ static void fsl_ssi_fifo_clear(struct fsl_ssi *ssi, bool is_rx) static void fsl_ssi_config(struct fsl_ssi *ssi, bool enable, struct fsl_ssi_regvals *vals) { + int dir = (&ssi->regvals[TX] == vals) ? TX : RX; struct regmap *regs = ssi->regs; struct fsl_ssi_regvals *avals; int nr_active_streams; - u32 scr; int keep_active; - regmap_read(regs, REG_SSI_SCR, &scr); - - nr_active_streams = !!(scr & SSI_SCR_TE) + !!(scr & SSI_SCR_RE); + nr_active_streams = !!(ssi->streams & BIT(TX)) + + !!(ssi->streams & BIT(RX)); if (nr_active_streams - 1 > 0) keep_active = 1; @@ -474,6 +475,9 @@ static void fsl_ssi_config(struct fsl_ssi *ssi, bool enable, keep_active); /* Safely disable SCR register for the stream */ regmap_update_bits(regs, REG_SSI_SCR, scr, 0); + + /* Log the disabled stream to the mask */ + ssi->streams &= ~BIT(dir); } /* @@ -549,6 +553,9 @@ static void fsl_ssi_config(struct fsl_ssi *ssi, bool enable, } /* Enable all remaining bits */ regmap_update_bits(regs, REG_SSI_SCR, vals->scr, vals->scr); + + /* Log the enabled stream to the mask */ + ssi->streams |= BIT(dir); } }